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问:苗期勤铲多蹚有何作用?答:棉花是喜温喜光作物,因此,从播种到采收,一切栽培措施都是为了增光、增温、争时间,以实现早发、早熟、优质。在我省春季低温、干旱或多湿的条件下,播种后更要加强苗期管理,勤铲多蹚。铲蹚不仅能破除板结、疏松土壤、增加土壤空气、提高地温、保墒排湿,还能加速土壤养分的分解,提高供肥能力,从而促进棉苗根系深扎。据调查,四叶前铲蹚3遍较未管理的5厘米地温增加0.8℃,株高增加3.2厘米,4叶株率高79％。
Q: What is the effect of multiple shovels at seedling stage? A: Cotton is a hi-temperature light crop. Therefore, all cultivation measures are to increase light, increase temperature and fight time from sowing to harvesting so as to achieve early onset, early maturity, high quality. In our province in spring low temperature, drought or wet conditions, but also to strengthen the sowing after sowing management, Qin shovel times. Shovel trips can not only break the compaction, soil loosening, increase soil air, increase ground temperature, moisture and moisture, but also accelerate the decomposition of soil nutrients, improve fertilizer capacity, thus promoting the cotton seedling roots deep tie. According to the survey, the four-leaf shovel trip three times more than the unmanaged 5 centimeters increase in temperature 0.8 ℃, plant height increased by 3.2 cm, 4 leaf rate 79%.